I can't understand him anymore !! can anyone of you explain to me this situation?

we break up for maybe 2 months ( becuz of distance as he said but we were talking everyday) we are back now !! but I can never feel him !! like he is not there for me !! i call him, no pick up ( he said he left his phone in his room ) i text him (no text back ) i was traveling for 2 days and i asked him to come with me at the train station, he came with me !! I grabed his hand like i was holding a mug, his hand was DEAD !! I even asked him like ( can I hug you? ) he has been silent for a little while and then he said ok hug me !! i hugged him but he didn't hugged me back! awkward, for the first time in my life I felt ice in my shoulders, it was a cold hug... and i am still wondering if he doesn't like me anymore, why we are still together? i can't understand this situation, and I dont know what to do !! i can't continue like this :/